The Tony Hawk series have been some of my favorite games since I played the demo for Tony Hawk 2 on a demo disc from Official Sega Dreamcast Magazine. For me, my favorite was Tony Hawk 4, followed by 3, THUG, and 2. I thought the level design in 4 was really good (especially Alcatraz...brilliant), and I liked the varied challenges like the pro challenges and the ones where people call out tricks and you have to nail them. I'm not quite halfway through THUG2, so I can't say yet how that fits in with the rest. I'm enjoying it so far, and some of the level design is really good, but it doesn't seem as new as previous iterations. Of course, when nothing new is added to something I already greatly enjoy, that's not necessarily a bad thing.